I have had this car for about 6 months and ever since I got it, it has blown blue smoke in vtec, so recently I changed the valve stem seals (along with the head gasket etc) and now it is still blowing smoke, possibly more than before! Is this going to be piston rings or is there something else? It now seems to happen in full throttle above about 3000 rpm but only when driving, if I rev it on the drive it seems fine?